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HP Oldies.
I've been adding to my collection of HP acquisitions, from what
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I've been able to find in the search of patents BRC had some interesting on creating FM modulation. Their 202 series FM generators were the 'standard' for anyone doing work on VHF FM which in the 60's for telemetry was a big money maker. And if you were designing for consumer FM you bought a 202. And of course the Q-Meter was a big seller. --- In hp_agilent_equipment@..., "Richard Knoppow" <dickburk@...> wrote:
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Peter Gottlieb
What was so special about the 202? Are today's generators as good?
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On 12/24/2012 6:27 PM, petepdx1955 wrote:
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Nothing special by today's standards but in 1952 it was. I'll see if I can dig up the information that was sent to me.
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Here is a description of the last of the series the H/J -pete --- In hp_agilent_equipment@..., Peter Gottlieb <hpnpilot@...> wrote:
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Thanks. I'll keep watching eBay and see what comes along.
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Regards. Max. K 4 O DS. Email: max@... Transistor site Vacuum tube site: Woodworking site Music site: To subscribe to the fun with transistors group send an email to. funwithtransistors-subscribe@... To subscribe to the fun with tubes group send an email to, funwithtubes-subscribe@... To subscribe to the fun with wood group send a blank email to funwithwood-subscribe@... ----- Original Message -----
From: "petepdx1955" <petepdx1955@...> To: <hp_agilent_equipment@...> Sent: Monday, December 24, 2012 5:06 PM Subject: [hp_agilent_equipment] Re: HP Oldies.
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We moved from there when I was five years old. I never knew that there
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was as many electronics companies in the area as you list. Dave On 12/24/2012 4:16 PM, petepdx1955 wrote:
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Both the 260-A Q-Meter and the 250-A RX Meter were made under the HP brand. Development continued for a while in NJ. A 250-B was made.
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The 260-A was replaced by the 4342A. RX meters vanished and were replaced by VNA's One not mentioned was the higher frequency Q-Meter, the 190-A. I have a 190B, which is different andappears to be almost production. With it came some design notes on a redesign replacing the tubes with transistors. Sadly no names on any of the notes. There are a couple useful sites for the 260-A (manuals) k5bcq talks about making his own work coils, for a long time 103A's were pretty much non existent. But over the past 3 to 4 years they have been showing up. The ones above 5 MHz are still pretty rare. And if your patient the 518A standards can be had. --- In hp_agilent_equipment@..., "Richard Knoppow" <dickburk@...> wrote:
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